Universal battery pack and vehicle

Abstract

The utility model discloses a general battery pack and a vehicle, the general battery pack is adapted to various vehicles, the general battery pack comprises a box body and a battery module, the box body is internally provided with cross beams and longitudinal beams, the cross beams and the longitudinal beams divide a plurality of accommodating spaces in the box body, and the battery module is arranged in the accommodating spaces. A battery module is arranged in each accommodating space; wherein the number of the battery modules is multiple, and the multiple battery modules are different in capacitance and the same in boundary size so as to adapt to vehicles with different endurance mileages. The universal battery pack can meet different performance requirements of various vehicles on the battery pack, can avoid adjusting and re-developing the universal battery pack to adapt to different vehicles, and saves the research and development cost and cycle.

Description

Technical Field

[0001] The utility model relates to the technical field of batteries, and in particular to a universal battery pack and a vehicle. Background Art

[0002] In the relevant technology, the battery pack is the core component of the power system of new energy vehicles, which is crucial to the vehicle's driving range, cost, service life, safety and other indicators. Usually, multiple battery cells are connected in series and parallel to form a battery module, which is installed in the structural system, and then combined with the battery management system, thermal management system and structural system to form a battery pack.

[0003] Considering that different models have different performance requirements for battery packs, even the same model sometimes needs to be configured with different capacities and voltages. Therefore, when developing new energy vehicles, the battery pack usually needs to be adjusted or the specific structure of the battery pack shell needs to be redeveloped for different vehicles, resulting in low versatility of the battery pack shell and increased R&D costs and cycles. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the utility model is to propose a universal battery pack, which can meet the different performance requirements of various vehicles for battery packs, avoid adjusting and redeveloping the universal battery pack to adapt to different vehicles, and save research and development costs and cycles.

[0005] The utility model also provides a vehicle having the universal battery pack.

[0006] According to the universal battery pack of the first aspect of the utility model, the universal battery pack is suitable for a variety of vehicles, including: a box body and a battery module, the box body has a crossbeam and a longitudinal beam, the crossbeam and the longitudinal beam divide a plurality of accommodating spaces in the box body, and a battery module is arranged in each of the accommodating spaces; wherein the battery modules are of multiple types, and the multiple battery modules have different capacities and the same boundary sizes to adapt to vehicles with different cruising ranges.

[0007] According to the universal battery pack of the embodiment of the utility model, the adaptability of the various battery modules to the casing is improved by limiting the boundary dimensions of the various battery modules to be the same, and the versatility of the universal battery pack in being applied to various vehicles (for example, vehicles of different types, or vehicles of the same model but with different configurations) is improved, eliminating the need to adjust and redevelop the specific structure of the casing and the universal battery pack, saving R&D costs and cycles, optimizing the production efficiency and economic benefits of the vehicle, and facilitating the subsequent maintenance convenience of the universal battery pack.

[0008] According to some embodiments of the utility model, the multiple battery modules all include: a shell, battery cells arranged in the shell, and an insulation layer between adjacent battery cells, and the shell sizes of the multiple battery modules are the same, and the number of battery cells and the thickness of the insulation layer are different.

[0009] According to some embodiments of the present invention, a first mounting portion is provided on the end plate of the shell, the first mounting portion is connected to the crossbeam, and the adapter row of adjacent battery modules is arranged on the crossbeam between the two.

[0010] In some embodiments, the universal battery pack further includes: a BDU module, a second mounting portion separated from the accommodating space is disposed at the front end of the box, and the BDU module is disposed at the second mounting portion.

[0011] Furthermore, there are multiple types of BDU modules, and each of the multiple BDU modules includes: a mounting plate and electrical components mounted on the mounting plate, and the multiple mounting plates have the same size so that the BDU modules can be adapted to vehicles with different cruising ranges.

[0012] According to some embodiments of the present invention, a plurality of mounting positions are provided on the mounting plate, and positions of the mounting positions on the plurality of mounting plates are the same.

[0013] In some embodiments, the universal battery pack further includes: a BMS mainboard, which is disposed on the second mounting portion and stacked on top of the BDU module.

[0014] According to some embodiments of the present invention, the universal battery pack further includes: a BMS slave board, a receiving groove is provided on the longitudinal beam, and the BMS slave board is arranged in the receiving groove.

[0015] Further, the number of the accommodating grooves is consistent with or greater than the number of the BMS slave boards.

[0016] According to the vehicle of the second aspect of the present utility model, the vehicle includes: a vehicle body and a universal battery pack, the vehicle body is provided with a mounting port, the universal battery pack is constructed as the universal battery pack described in any one of the above embodiments, and the universal battery pack is fixed to the mounting port.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0019] Figure 1 is a top view of a universal battery pack according to an embodiment of the utility model;

[0020] Figure 2 is an axonometric view of a battery module according to an embodiment of the utility model;

[0021] Figure 3 is a top view of a battery module according to an embodiment of the utility model;

[0022] Figure 4 is a schematic diagram of a mounting plate according to an embodiment of the utility model;

[0023] Figure 5 It is a schematic diagram of the BDU module of the N50 model according to an embodiment of the utility model;

[0024] Figure 6 It is a schematic diagram of the BDU module of the N51 model according to an embodiment of the utility model;

[0025] Figure 7 It is a schematic diagram of the BDU module of the N61 model according to an embodiment of the utility model.

[0026] Reference numerals:

[0027] Universal battery pack 1;

[0028] Box body 11, longitudinal beam 111, cross beam 112;

[0029] Battery module 12, housing 121, end plate 1211, first mounting portion 12111;

[0030] BDU module 13, mounting plate 131, mounting position 1311, electrical components 132;

[0031] BMS main board 14, BMS slave board 15, front-end discharge high-voltage connector 16, low-voltage connector 17, grounding harness 18, rear-end high-voltage connector 19, adapter bar 20. DETAILED DESCRIPTION

[0032] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0033] Reference below Figure 1-Figure 7 A universal battery pack 1 and a vehicle according to an embodiment of the present invention are described.

[0034] like Figure 1 and Figure 2 As shown, according to the universal battery pack 1 of the first embodiment of the utility model, the universal battery pack 1 is suitable for a variety of vehicles, and the universal battery pack 1 includes: a box body 11 and a battery module 12.

[0035] Among them, the box body 11 has a crossbeam 112 and a longitudinal beam 111, and the crossbeam 112 and the longitudinal beam 111 divide a plurality of accommodating spaces in the box body 11. A battery module 12 is arranged in each accommodating space. The battery module 12 has a variety of structures, and the various battery modules 12 have different capacities and the same boundary sizes to adapt to vehicles with different cruising ranges.

[0036] Specifically, the box 11 can be set on the body of the vehicle to achieve the installation and fixation of the universal battery pack 1 on the vehicle. The multiple accommodating spaces in the box 11 can respectively accommodate multiple battery modules 12. The battery modules 12 can be constructed into multiple types with different capacities according to the performance requirements of different vehicles. The different capacities here can be achieved by but not limited to adjusting the internal structure, shape and material of the battery module 12. Among them, the boundary dimensions of multiple battery modules 12 are the same, which can avoid the need to adjust or redesign the specific structure of the box 11 to meet the installation requirements of different battery modules 12, thereby improving the versatility of the box 11.

[0037] It should be noted that the universal battery pack 1 disclosed in the embodiment of the present invention can be used in, but not limited to, electrical devices such as vehicles, ships or aircraft. The power supply system of the electrical device can be composed of the box 11 and the battery module 12 disclosed in the present invention, which is conducive to expanding the application range of the box 11 and improving the versatility of the universal battery pack 1.

[0038] According to the universal battery pack 1 of the embodiment of the utility model, by limiting the boundary dimensions of the various battery modules 12 to be the same, the adaptability of the various battery modules 12 to the box body 11 is improved, and the versatility of the universal battery pack 1 in applying to various vehicles (for example: vehicles of different types, or vehicles of the same model but with different configurations) can be improved, eliminating the need to adjust and redevelop the specific structure of the box body 11 and the universal battery pack 1, saving R&D costs and cycles, optimizing the production efficiency and economic benefits of the vehicle, and facilitating the subsequent maintenance convenience of the universal battery pack 1.

[0039] like Figure 2 and Figure 3 As shown, according to some embodiments of the present invention, various battery modules 12 include: a shell 121, a battery cell and a heat insulation layer.

[0040] The battery cells are arranged in the shell 121, and the heat insulation layer is located between adjacent battery cells. The shells 121 of various battery modules 12 have the same size, but different numbers of battery cells and thicknesses of heat insulation layers.

[0041] Specifically, the shell 121 can be installed in the accommodating cavity, and a accommodating cavity for accommodating battery cells and a thermal insulation layer is formed in the shell 121. The number and thickness of battery cells of the various battery modules 12 can be different to meet the target capacity of the various battery modules 12, and a thermal insulation layer is arranged between adjacent battery cells. By changing the thickness and material of the thermal insulation layer, the distance between adjacent battery cells and between the battery cells and the inner wall of the accommodating cavity can be adjusted. In this way, the boundary dimensions of the various battery modules 12 can be adjusted to the same size that matches the size of the shell 121, so that the shell 121 can be standardized in the accommodating space and the box body 11 can be universalized.

[0042] It should be noted that the types of cells in the various battery modules 12 in the above embodiments may be different. For example, the cells may be constructed as ternary lithium cells or lithium iron phosphate cells.

[0043] like Figure 3 As shown, according to some embodiments of the present invention, a first mounting portion 12111 is provided on the end plate 1211 of the shell 121, the first mounting portion 12111 is connected to the cross beam 112, and the adapter row 20 of adjacent battery modules 12 is spanned across the cross beam 112 therebetween.

[0044] Specifically, the end plates 1211 at both ends of the shell 121 in the length direction are respectively provided with first mounting portions 12111, and the first mounting portions 12111 and the cross beam 112 can be fixedly connected by screwing, riveting, welding, etc., and the shell 121, the battery cells in the shell 121, and the heat insulation layer can be fixedly installed in the accommodation space through the first mounting portions 12111, wherein the first mounting portions 12111 on the shells 121 of various battery modules 12 are of the same size to ensure the uniformity of the installation of the shells 121 and the cross beam 112 of various battery modules 12. In addition, the transfer row 20 of adjacent battery modules 12 is arranged across the cross beam 112 between the two, realizing the modularization of the transfer row 20, and ensuring that the battery modules 12 in multiple accommodation spaces can perform good current transmission and signal transmission, etc.

[0045] In addition, in a specific embodiment of the present invention, an insulating cover is provided between the end plate 1211 and the battery cell, and the insulating cover can provide insulation protection for the battery cell in the shell 121 to prevent adjacent battery modules 12 from short-circuiting due to contact, thereby improving the working safety and service life of the universal battery pack 1.

[0046] like Figure 1 As shown, in some embodiments, the universal battery pack 1 further includes: a BDU module 13, a second mounting portion separated from the accommodating space is disposed at the front end of the box body 11, and the BDU module 13 is disposed at the second mounting portion.

[0047] Specifically, the second mounting portion is arranged at the front end of the box body 11, and the second mounting portion and the accommodating space are spaced apart in the front and rear directions of the box body 11, and the BDU (Battery Disconnect Unit) module 13 is arranged at the second mounting portion. In this way, the integrated layout of the BDU module 13 itself is realized, and the structure between the BDU module 13 and the battery module 12 is made compact, thereby improving the space utilization rate in the box body 11, which is beneficial to improving the battery energy density of the universal battery pack 1, optimizing the volume, and saving the layout space occupied on the vehicle body.

[0048] like Figure 4-Figure 7 As shown, further, there are multiple types of BDU modules 13 , and each of the multiple BDU modules 13 includes: a mounting plate 131 and electrical components 132 .

[0049] The electrical components 132 are mounted on the mounting plates 131 , and the various mounting plates 131 have the same size so that the BDU module 13 can be adapted to vehicles with different ranges.

[0050] Specifically, the interiors of various BDU modules 13 can be differentiated in design according to the voltage platforms and current requirements of various vehicles, that is, the types, quantities, layout positions, etc. of electrical components 132 (such as copper busbars, relays, smart fuses, etc.) installed on the mounting plate 131 can be different, while the sizes of various mounting plates 131 are the same, ensuring that the external boundary sizes of various BDU modules 13 are the same. Various BDU modules 13 can be adapted to vehicles with different cruising ranges, realizing the modularization and standardization of various BDU modules 13, thereby further improving the adaptability of the universal battery pack 1 for various vehicles.

[0051] In addition, in some specific embodiments of the present invention, for different vehicle models on the same platform, when the universal battery pack 1 is applied to these vehicle models, only some electrical components 132 need to be changed inside the various BDU modules 13 to easily adapt the BDU modules 13 to different vehicle models.

[0052] like Figure 5-Figure 7 As shown, for example, for the N50, N51, N60 and N61 models of the BE21 platform, the BDU module 13 solution for the N51 model is obtained by adding a four-wheel drive copper bar to the BDU module 13 of the N50 model; the BDU module 13 solution for the N61 model is obtained by removing the fast charging relay part from the BDU module 13 of the N50 model; the BDU module 13 solution for the N60 model is obtained by adding a copper bar to the BDU module 13 of the N61 model. The mounting plate 131 of the BDU module 13 of each model is the same size to ensure the modularization and standardization of the BDU module 13.

[0053] like Figure 4As shown, according to some embodiments of the present invention, a plurality of mounting positions 1311 are provided on the mounting plate 131 , and the positions of the mounting positions 1311 on the various mounting plates 131 are the same.

[0054] Specifically, the mounting position 1311 can be constructed as a plurality of mounting positions 1311 spaced apart on the mounting plate 131, the positions of the mounting positions 1311 on the various mounting plates 131 of the various BDU modules 13 are the same, and the mounting points of the various mounting plates 131 in the second mounting portion are the same, that is, the fixed connection points of the various mounting plates 131 and the box body 11 are the same. In the production process, the various mounting plates 131 and the box body 11 used for various vehicles can be standardized and mass-produced to improve production efficiency and save economic costs.

[0055] Preferably, in a specific embodiment of the present invention, the mounting position 1311 is constructed as an arc-shaped groove formed by at least a portion of the edge of the mounting plate 131 being recessed inward, and the arc-shaped groove can cooperate with a fastener or directly engage with the bottom wall of the box body 11 to achieve operational convenience for assembling the mounting plate 131 and the box body 11.

[0056] In another specific embodiment of the present invention, the mounting position 1311 is constructed as a through hole that penetrates along the thickness direction of the mounting plate 131, and the mounting plate 131 can be fixedly connected to the box body 11 by fasteners such as bolts and rivets. In this way, the mounting plate 131 and the box body 11 can be easily installed and disassembled, which is beneficial to improving the assembly efficiency and maintenance convenience of the mounting plate 131 and the box body 11.

[0057] like Figure 1 As shown, in some embodiments, the universal battery pack 1 further includes: a BMS mainboard 14 , which is disposed in the second mounting portion and stacked above the BDU module 13 .

[0058] Specifically, the BMS (Battery Management System) main board 14 is used for intelligent management and maintenance of each battery module 12. The BMS main board 14 and the BDU module 13 are integrated in the second mounting part. By stacking the BMS main board 14 on the BDU module 13, the structural compactness of the BMS main board 14 and the BDU module 13 is further improved, which is more convenient for the management of the vehicle electrical system and makes full use of the space in the height direction of the second mounting part. In this way, the space occupied by the second mounting part can be saved, so that more space in the box 11 can be used to arrange the battery module 12, thereby further improving the battery energy density of the universal battery pack 1, improving the energy efficiency of the universal battery pack 1, and optimizing the vehicle's endurance performance.

[0059] like Figure 1As shown, according to some embodiments of the present invention, the universal battery pack 1 further includes: a BMS slave plate 15, a receiving groove is opened on the longitudinal beam 111, and the BMS slave plate 15 is arranged in the receiving groove.

[0060] Specifically, the longitudinal beam 111 can be constructed as a plurality of longitudinal beams 111 extending in the front-to-rear direction of the box body 11 and arranged at intervals in the width direction of the box body 11. A downwardly recessed accommodating groove is formed at the top of the longitudinal beam 111. The BMS slave board 15 is arranged in the accommodating groove. When the BMS slave board 15 is installed, the BMS slave board 15 can be arranged along the extension direction of the longitudinal beam 111 through the accommodating groove. In this way, on the one hand, it is ensured that the BMS slave board 15 can fully monitor the battery modules 12 located in the accommodating spaces on both sides of the longitudinal beam 111 in the width direction, and the BMS slave board 15 can be connected to the BMS main board of the second mounting portion through the longitudinal beam 111 extending toward the front end of the box body 11. 14 cooperates with each other, thereby ensuring that the BMS slave board 15 and the BMS main board 14 can have good working performance, which is beneficial to improving the working safety and extending the life of the universal battery pack 1; on the other hand, by digging grooves in the longitudinal beam 111, it is possible to reduce the weight of the longitudinal beam 111 while avoiding the installation of the BMS slave board 15 occupying other space in the box body 11, thereby improving space utilization and improving the energy density of the universal battery pack 1. Therefore, by setting the accommodating groove, it is achieved that on the basis of ensuring the strength mode of the overall universal battery pack 1, the universal battery pack 1 can be effectively reduced in weight and increased in efficiency, which is beneficial to the lightweight of the entire vehicle and improves the endurance of the entire vehicle.

[0061] like Figure 1 As shown, further, the number of the accommodating grooves is consistent with or greater than the number of the BMS slave boards 15 .

[0062] Specifically, through the division of the longitudinal beam 111 and the transverse beam 112, the accommodating grooves can be constructed to be located between adjacent battery modules 12 in the front-to-rear direction of the box body 11. The number of BMS slave boards 15 can be consistent with the number of accommodating grooves. A BMS slave board 15 is arranged in each accommodating groove. The number of BMS slave boards 15 can also be less than the number of accommodating grooves. In this case, some of the accommodating grooves can be left vacant to reduce the weight of the longitudinal beam 111. By adjusting the number of BMS slave boards 15, the different differentiated requirements of the battery cells in various battery modules 12 can be met, so as to realize the modularization of the cooperation between the BMS slave board 15 and the BMS main board 14, and further improve the versatility of the universal battery pack 1.

[0063] According to the vehicle of the second aspect embodiment of the utility model, the vehicle includes: a vehicle body and the universal battery pack 1 described in any one of the above embodiments, and a mounting port is provided on the vehicle body, and the universal battery pack 1 is fixed to the mounting port to achieve adaptation to a variety of vehicles. The technical effects are consistent with the above embodiments and will not be repeated here.

[0064] It can be understood that the distribution of installation ports of various vehicles can be kept consistent, and the interface distribution on the universal battery pack 1 used for different vehicles in the utility model is kept consistent, and the interface is set corresponding to the installation port of the vehicle to improve the universality of the universal battery pack 1 and realize standardized settings, thereby saving costs and improving the production efficiency of the universal battery pack 1 and the entire vehicle.

[0065] In addition, in some specific embodiments of the present invention, the front end of the box body 11 is provided with a front-end discharge high-voltage connector 16, a low-voltage connector 17, a grounding harness 18 and other components, and the rear end of the box body 11 is provided with a rear-end high-voltage connector 19 and other components. These components are respectively matched with the mounting ports on the vehicle body to achieve normal working performance of the universal battery pack 1.

[0066] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0067] In the description of the present invention, "first feature" or "second feature" may include one or more of the features.

[0068] In the description of the present invention, "plurality" means two or more.

[0069] In the description of the present invention, a first feature being “above” or “below” a second feature may include that the first and second features are directly in contact with each other, or may include that the first and second features are not in direct contact but are in contact with each other via another feature therebetween.

[0070] In the description of the present invention, a first feature “above”, “over” and “above” a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature.

[0071] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0072] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A universal battery pack, which is suitable for a variety of vehicles, characterized in that: include: A box body (11), wherein the box body (11) has a crossbeam (112) and a longitudinal beam (111), and the crossbeam (112) and the longitudinal beam (111) divide a plurality of accommodating spaces in the box body (11); A battery module (12), wherein each of the accommodating spaces is provided with a battery module (12); wherein The battery modules (12) are of multiple types, and the multiple battery modules (12) have different electrical capacities and the same boundary sizes, so as to be adapted to vehicles with different cruising ranges.

2. The universal battery pack according to claim 1, characterized in that: The multiple battery modules (12) all comprise: a shell (121), battery cells arranged in the shell (121), and a heat insulation layer between adjacent battery cells, and the shells (121) of the multiple battery modules (12) have the same size, but the number of battery cells and the thickness of the heat insulation layer are different.

3. The universal battery pack according to claim 2, characterized in that: A first mounting portion (12111) is provided on the end plate (1211) of the shell (121), the first mounting portion (12111) is connected to the crossbeam (112), and the adapter row (20) of adjacent battery modules (12) is arranged on the crossbeam (112) therebetween.

4. The universal battery pack according to claim 1, characterized in that: Also includes: A BDU module (13), wherein a second mounting portion spaced apart from the accommodating space is provided at the front end of the box body (11), and the BDU module (13) is arranged at the second mounting portion.

5. The universal battery pack according to claim 4, characterized in that: There are multiple types of the BDU modules (13), each of which comprises: a mounting plate (131) and an electrical component (132) mounted on the mounting plate (131), and the multiple mounting plates (131) have the same size so that the BDU modules (13) are adapted to vehicles with different cruising ranges.

6. The universal battery pack according to claim 5, characterized in that: A plurality of mounting positions (1311) are arranged on the mounting plate (131), and the positions of the mounting positions (1311) on the plurality of mounting plates (131) are the same.

7. The universal battery pack according to claim 4, characterized in that: Also includes: A BMS main board (14), the BMS main board (14) being arranged on the second mounting portion and stacked on top of the BDU module (13).

8. The universal battery pack according to claim 1, characterized in that: Also includes: A BMS slave plate (15) is provided with a receiving groove on the longitudinal beam (111), and the BMS slave plate (15) is arranged in the receiving groove.

9. The universal battery pack according to claim 8, characterized in that: The number of the accommodating grooves is consistent with or greater than the number of the BMS slave boards (15).

10. A vehicle, characterized in that: include: A vehicle body, wherein a mounting opening is provided on the vehicle body; The universal battery pack according to any one of claims 1 to 9, wherein the universal battery pack is fixed to the mounting port.

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